Flat roof leaks can quickly damage ceilings, walls, insulation and internal finishes if they are left untreated. The Specialist Roofers provide practical flat roof repairs across London, Surrey and Berkshire, helping homeowners, landlords and commercial properties get roofs watertight again.
We repair many common flat roof problems, including splits, punctures, failed joints, damaged edges, ponding water, blocked outlets and leaks around rooflights or upstands. Where a repair is suitable, we explain the likely fault and carry out a targeted fix using materials appropriate for the roof system.
Request a flat roof repair quote or, when water is actively entering the property, see our emergency roof repair service.
Flat roof leak detection and repair
Flat roof leaks are not always caused by one obvious hole. Water can enter through a split, worn detail, edge failure, rooflight surround, outlet, parapet, flashing or weak joint, then travel before it appears inside the property.
We inspect the roof surface and surrounding details to identify the likely route of water ingress. The aim is to repair the failed area properly, not simply cover the place where the water became visible indoors.
Common flat roof problems we repair
- Leaks after heavy or wind-driven rain
- Split, cracked or punctured roof coverings
- Failed seams, joints and laps
- Felt roof blistering, lifting or localised damage
- EPDM rubber roof punctures and edge failures
- GRP fibreglass cracks and damaged trims
- Leaks around rooflights, skylights, vents and upstands
- Blocked outlets and drainage faults
- Ponding water linked to recurring leaks
- Failed previous patches
- Storm or wind damage to flat roof edges
Felt, EPDM and GRP flat roof repairs
Different flat roof systems need different repair methods. A felt roof may need patching, resealing or a renewed section. An EPDM rubber roof may need work around seams, edges, outlets or punctures. A GRP fibreglass roof may need local repairs to cracks, trims or damaged areas.
We assess the roof condition and recommend the most sensible repair, whether that is a local patch, a detail repair, resealing or a larger renewal where the existing covering is no longer reliable.
Emergency flat roof repairs
If water is actively coming through a flat roof, the first priority is to reduce water ingress safely. Depending on the weather and roof condition, emergency weatherproofing or a same-visit repair may be possible before any permanent follow-up work.
Do not climb onto a wet or damaged flat roof yourself. Move valuables away from the leak and contain dripping water safely if possible. If water is near electrics, treat it as urgent and seek appropriate electrical safety advice.
Should a flat roof be repaired or replaced?
Many flat roof leaks can be repaired when the problem is localised and the rest of the roof is in reasonable condition. Repeated leaks, widespread cracking, badly failed edges, poor drainage or an aged covering can make replacement the better long-term option.
We take a repair-first approach where a reliable repair is practical. If wider renewal is the more sensible option, we explain why before any work is agreed. You can also read about our broader roof repairs and maintenance work.
Flat roof repairs across London, Surrey and Berkshire
We repair flat roofs on homes, extensions, garages, dormers, balconies, shops, offices and other commercial buildings across London, Surrey and Berkshire. The repair method depends on the roof covering, access, drainage, the failed detail and the condition of the surrounding roof.
Flat roof repair questions
Can a leaking flat roof be repaired?
Yes, many flat roof leaks can be repaired if the damage is localised and the surrounding covering remains serviceable. Common repairs include patching splits, sealing failed joints, repairing edges and correcting details around rooflights or outlets.
Do you repair felt flat roofs?
Yes. We repair serviceable felt flat roofs with local problems such as splits, lifting felt, blistering, failed laps and isolated damage.
Do you repair EPDM rubber roofs?
Yes. Depending on the condition and installation of the existing roof, we can repair punctures, edge problems, outlet faults and failed EPDM details.
Do you repair GRP fibreglass roofs?
Yes. We repair many local GRP problems, including cracks, damaged trims, leaking details and isolated impact damage.
When does a flat roof need replacing?
Replacement may be more reliable when a covering is badly aged, cracked across large areas, repeatedly leaking, holding water because of a wider design problem, or covered by failing previous patches. An inspection is needed before recommending repair or replacement.